Gordon Pettits：英国车迷G79次见闻 World’s longest and fastest High Speed Rai...

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3月初，来自英国铁路博物馆之友的访问团，来到中国。在北京参观了铁博东郊及正阳门馆。于3月7日上午乘坐G79次前往广州。英国车迷在回国后，向海子铁路网发来了有关他们在中国访问的第一篇见闻。

详情：http://bbs.hasea.com/thread-478358-1-1.html

Riding Train G 79 in China

on the World’s longest and fastest High Speed Railway

作者：Gordon Pettits

The title demandsthat I set out the basis and context of this bold claim, so here goes.

Train G79 is aregular scheduled service that runs 7 days a week from Beijing West toGuangzhou South, a distance of 2298 km (1427 miles) .The present terminal ofthe line is at Shenzhen North 116 km further south, but the ultimatedestination is West Kowloon (Hong Kong) When line is completed to there in 2018,it will be 2440 km (1516 miles) fromBeijing. The route has been designed for trains to operate at speeds up to 350km/h but the current max speed for G trains is 313 km/h in order to save onenergy and reduce costs. However the start to stop timings for G 79 suggestthat there are exceptions and that turns out to be the case.

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To set thedistance in context, the longest continuous section of high speed line inEurope is the 1134 km from Perpignan in France to Malaga in Spain. The longestin the remainder of the world is the 1069 km line between Tokyo and Hagata inJapan.

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Train G79 is scheduled to make 4 intermediate stops of 2 or 3 minutes, all at cities with populations between 7 and 12 million inhabitants. The journey is scheduled to take 7 hours 59 minutes at an average of 287.8 km/h (178.84 mph) including stops.

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The November 2011 edition of the Railway Gazette published a survey of the fastest start-to-stop runs in the world. China headed this list for the first time with 4 G trains, running non stop from Wuhan to Guangzhou Nan, at an average speed of 308.9kmh. Since that time an additional stop has been included at Shangsha South.

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On my trip in March, G 79 was formed of a sixteen car Class CRH 380 BL set with distributed power. The first set entered service in 2010. It is an upgraded version of the eight coach CRH3C which in turn was derived from the Siemens ICE3 (class 403). From both inside and out it is clearly a member of the ICE3 family. The trains have 1004 seats in three classes. Power rating is 18.4 kW (25,017 HP) i.e. more than twice that of a Eurostar.

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China has two classes of train designed to run at 380 km/h. The CRH 380 BL forming G79 is one. The second CRH 380 AL is a totally Chinese train of 20.4 kW power.  Both classes have achieved world speed records for “production trains”. The 380 A 486.1 km/h (302 mph) on 3.12.10 and the 380 B 487.3 km/h (302.75 mph) on 10.1.11. The similarity of the speeds reminds me of the famous SNCF trails in 1955 between a BB and a CC locomotive where it was said at the time that both locomotives had achieved 331 km/h. It was only revealed 31 years later that the CC had only attained 326 km/h.   It turned out that it had been agreed between the parties in advance (including the two manufacturers) that if the difference in the maximum speed was only around 5 km/h the highest speed achieved would be cited for both.

I suspect a similar situation between the two manufacturers of 380 A and B.   

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To be Continued

通局饭段

木懂e文！

Ctrlroad

关G79啥事啊？就一个summary of CRH啊

JacksonLin

闲着没事儿当回翻译，写的可能不准确，大家多指教。

标题的设立，是基于我在下文中大胆的设定。好了，让我们开始。

我乘坐的G79次列车，是一个定期服务。一周7天往返运行于北京西到广州南之间,距离为2298公里(1427英里)。目前最南端的是在深圳北116公里以南,但当2018年全线建成时，最终的目的地是香港的九龙。这从北京算起将长达2440公里(1516英里)。这条路线在设计建造和初期运营时，是专为运行时速高达350公里/小时的列车服务。为了节省能源和降低成本，当前的最高速度为G字头列车，最高速是313公里/小时。从G79的运行过程中，也有例外。

JacksonLin

下文的设定是基于最长连续段高速铁路线 - 欧洲法国佩皮尼昂到西班牙马拉加全长1134公里。1069公里的日本东京至Hagata。

G79次定于中间停车4站，每次停车2或3分钟。所有停车站所在城市的人口约有700到1200万人口之间。旅行预定花费7小时59分钟，平均速度287.8公里/小时(178.84英里)包括停车状态。

2011年11月版的《铁路公报》公布了一项名为世界上“启停时间最快”的列车的调查。

中国在这项调查中有4趟G列车排在调查榜首。他们从武汉到广州南一站不停,平均时速308.9公里。

（最后一句不懂怎么翻译）

JacksonLin

我在3月份乘坐的G79次列车，是16节编组的CRH380BL电动分散动力动车组。其第一组于2010年开始服役。这是CRH3C的升级版，而CRH3C则源于西门子ICE3(Class 403）。

第一组在2010年开始服役。这是一个升级版的八个教练CRH3C反过来是来源于西门子ICE3(403级)。

无论从外观还是内部，很明显是ICE3系列的成员，共有三大类、1004个坐席。

额定功率为18.4千瓦(25017马力)即一个欧洲之星的两倍还多。

JacksonLin

中国目前有两类设计时速在380公里/小时的列车在运行。G79的CRH380BL动车组是一个。另一个就是CRH380AL，是一个额定功率达到20.4千瓦的完全中国的列车。两个型号均取得了世界铁路运营最高速的记录。380A的486.1公里/小时(302英里/小时)和380B的487.3公里/小时(302.75英里)。相似的速度让我想起了著名的1955年SNCF的两个机车CoCo轴式与BoBo轴式之间的"速度比赛",这是当时说这两个机车已经达到331公里/小时。但31年后显示,CoCo轴式机车只有达到326公里/小时。原来，他们双方(包括两个制造商)已经提前协商同意,如果两个轴式的机车最大速度差异小于大约5公里/小时，那么彼此都使用最高的速度进行报告。

我疑问380A和380B的两家制造商之间是否产生了与这个历史上相似的协议？

Ctrlroad

JacksonLin 发表于 2013-3-29 14:40
下文的设定是基于最长连续段高速铁路线 - 欧洲法国佩皮尼昂到西班牙马拉加全长113 ...

最后一句就说增加停站上海南，不过貌似和上下文没啥关系呃

Ctrlroad

Ctrlroad 发表于 2013-3-29 17:48
最后一句就说增加停站上海南，不过貌似和上下文没啥关系呃

定神一看，应该是Changsha South长沙南

nofifa

Shangsha South，Shanghai South，
师傅，媳妇，     老外的中文。

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The actualperformance details of G 79 between Beijing and Guangzhou South are shown inthe table below. The train was full throughout the journey (with over 1,000passengers) Those detraining en route being replaced by similar numbers joining.                                                            

                                                            Distance    Schedule  Actual        Actual

                                                              Miles          Mins       Mins   average .speed   

                                                                                                                    mph

Beijing West-ShijiazhuangSouth.          174.5            67         66.28        158.04

Shijiazhuang South-ZhengzhouEast      255.9            81         81.35        188.79

Zhengzhou East–Wuhan                        333             104         102          195.89

Wuhan- ChangshaSouth                         224.9            78         78.8          171.25

ChangshaSouth-Guangzhou Sth.            439.2          138       135.7          194.21

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Note; Distances based on those in the public timetable and confirmed by observation of Km posts on the OHL (add 4 km from Beijing West to start of the HSL)  

It will be noticed how the actual performance of the train was very close to schedule throughout. This was a feature of all the HSL trains travelled on during my visit so there was no opportunity to see any difference in performance when recovering time lost. The maximum time allowed at intermediate stations was three minutes but despite the large numbers joining and alighting, maximum lateness on departure from any station was 48 seconds.

Similar to the practice on most HSL’s the access to and egress from station platforms is via very high speed points. This system gives flexibility in timetabling and for a following train to pass during a 3-4 minute stop.  The technique on departure was   full power until line speed was reached and then cruise at between 304 and 308 km/h until nearing the next stop. The latter speeds were taken from the display at the end of each coach but it clear from the scheduled and marginally faster actual times that
G 79 is probably scheduled at speeds at least up to 325 km/h. I can only assume the public speed display was under recording due to a defect or for “policy reasons”

As to be expected on such a new railway the riding was superb throughout with trains passing in the opposite direction without with any noticeable effect .My impression is that the slab track installed throughout does give an improved ride .Only time will tell whether the expected long term life cost savings will be made.

So to conclude, G 79 travelled the longest distance that any high speed train can on a  continuous stretch of high speed railway built so far. Three of the start to stop runs were faster than any scheduled in the world to date. The were two highlights from a speed perspective. The first: Zengzhou East to Wuhan at an average of 195.89 mph. For a UK comparison the distance is almost the same as Kings Cross to Almouth covered in 1 Hour 42 minutes. The second (and better from a scenic point of view) was the last leg from Shangsha South to Guangzhou South at an average of 194.21 mph. In this case the UK comparison is Kings Cross to Stirling where the distance is exactly the same but the Journey time on G79 2 hours 18 minutes.

The world start to stop speed record is now 315.29 km/h but for how long ?

Ctrlroad

看来老外对快速准时的中国高铁赞不绝口啊哈哈。
那两个缩写OHL  HSL是神马意思啊

saxy_52

Ctrlroad 发表于 2013-3-31 16:22
看来老外对快速准时的中国高铁赞不绝口啊哈哈。
那两个缩写OHL  HSL是神马意思啊

OHL=Over Head Line; 接触网，HSL=High Speed Line;高速线，